Faculty of Built Environment, University of New South Wales, Sydney, NSW, 2052, Australia.
Environ Sci Pollut Res Int. 2021 Nov;28(44):62640-62650. doi: 10.1007/s11356-021-15172-y. Epub 2021 Jul 1.
Under the climate change scenario, the negative impacts of urban heat island (UHI) will exacerbate due to unsustainable urban planning and human activities. Thermal comfort has close relationships with UHI in urban areas. This paper is based on the studies of urban heat island, thermal comfort, microclimate, and urban planning in cities in the recent decade, combined with a method of research into design. The key topics include vegetation and water conditions, the albedo of materials, and urban morphology. By the comparative case studies in landscape projects, the results further reveal that the density of tree canopies, the natural structure and density of ground cover, the form of water features, the color and texture of materials, and the scale of shading structures have different cooling effect and performance in outdoor thermal comfort improvement with specific features in the landscape design. It is also found that there are some external conditions that can influence design determinations in real practices. The purpose of this study is to provide theoretical research methods and evaluation of thermal comfort landscape design elements and to provide guidance for future sustainable city research and landscape design.
在气候变化的背景下，由于不可持续的城市规划和人类活动，城市热岛（UHI）的负面影响将加剧。热舒适度与城市地区的 UHI 密切相关。本文基于近十年城市热岛、热舒适度、微气候和城市规划的研究，结合研究设计方法。主要研究内容包括植被和水条件、材料的反照率和城市形态。通过景观项目的对比案例研究，结果进一步表明，树冠密度、地面覆盖物的自然结构和密度、水景形式、材料的颜色和纹理以及遮阳结构的规模在改善户外热舒适度方面具有不同的冷却效果和性能，并且在景观设计中具有特定的特征。还发现，在实际实践中有一些外部条件会影响设计决策。本研究的目的是为热舒适度景观设计元素提供理论研究方法和评价，并为未来可持续城市研究和景观设计提供指导。
